2. Suppose that g: I→ R is differentiable at x = xo. Does the following limit g(xo +6h) - g(xo - 6h) 12h exist? (Either prove your answer or give a counterexample). lim h→0 Is the converse true? That is suppose the limit lim h→0 g(xo +6h) - g(xo - 6h) 12h L exists, is g differentiable at x = = xo? (Either prove your answer or give a coun- terexample).
2. Suppose that g: I→ R is differentiable at x = xo. Does the following limit g(xo +6h) - g(xo - 6h) 12h exist? (Either prove your answer or give a counterexample). lim h→0 Is the converse true? That is suppose the limit lim h→0 g(xo +6h) - g(xo - 6h) 12h L exists, is g differentiable at x = = xo? (Either prove your answer or give a coun- terexample).
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
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Need help with the converse bit, use the example attached for the method for solving this question.

Transcribed Image Text:Conversely, suppose (1) holds and r=0(x-xo)
Substituling
x = xo in (1) we get B=f(x)
lim (fix) +(20) - m) = .
0
x-xo
(im Ff(x)
x27x0 (x-xo)
It follows that if
then
=
lim √(22) >
хэль (х-хо)
lim f(x)-floco).
2-720 (2-20)
= M
m
20,
=>
M=
m= f'(an);

Transcribed Image Text:2. Suppose that g: I → R is differentiable at x = xo. Does the following limit
-
g(xo +6h) — g(xo – 6h)
12h
exist? (Either prove your answer or give a counterexample).
lim
h→0
Is the converse true? That is suppose the limit
lim
h→0
g(xo +6h) - g(xo - 6h)
12h
=
exists, is 9 differentiable at x = xo? (Either prove your answer or give a coun-
terexample).
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